Results 81 to 90 of about 36,997 (297)

Measuring the kinetic power of AGN in the radio mode [PDF]

, 2007
(Abridged) We have studied the relationship among nuclear radio and X-ray power, Bondi rate and the kinetic luminosity of sub-Eddington active galactic nuclear (AGN) jets.
Aharonian, Aitken, Akritas, Allen, Allen, Andrea Merloni, Atoyan, Baganoff, Baganoff, Balmaverde, Begelman, Benson, Best, Bicknell, Binney, Blandford, Blandford, Blandford, Blanton, Bower, Bower, Bower, Bîrzan, Bîrzan, Böhringer, Carilli, Cattaneo, Chiaberge, Chiaberge, Churazov, Churazov, Churazov, Ciotti, Cohen, Croton, Dalla Vecchia, De Ruiter, Di Matteo, Di Matteo, Done, Dunlop, Evans, Fabian, Fabian, Fabian, Fabian, Fabian, Falcke, Falcke, Falcke, Falcke, Fender, Ferrarese, Forman, Gallo, Gallo, Gebhardt, Giovannini, Hardcastle, Hardcastle, Hasinger, Heinz, Heinz, Heinz, Heinz, Heinz, Ho, Ho, Ho, Hopkins, Isobe, Johnstone, Jones, Kirchbaum, Kuncic, Kuncic, Körding, Körding, Loewenstein, Macchetto, Maoz, Marconi, Marconi, Marcowitz, Martini, McHardy, Merloni, Merloni, Merloni, Merloni, Merloni, Muno, Nagar, Nandra, Narayan, Nipoti, Ogle, Panessa, Paolillo, Papadakis, Pellegrini, Pellegrini, Rafferty, Rees, Reynolds, Sambruna, Sambruna, Sebastian Heinz, Shakura, Sijacki, Simpson, Soria, Springel, Tadhunter, Taylor, Terashima, Tremaine, Uttley, Willott, Wu, Young, Zhao, Zirbel   +122 more
core   +1 more source

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

Advanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat, Guido Barale, John Stavridis, Ehsan Norouzi, Jin‐Yoo Suh, Dong‐Ik Kim, Luca Iuliano, Abdollah Saboori   +7 more
wiley   +1 more source

Energy Flow and Radiation Efficiency in Radiative GRMHD Simulations of Neutron Star Ultraluminous X-Ray Sources

The Astrophysical Journal
We investigate numerically the energy flow and radiation efficiency of accreting neutron stars as potential ultraluminous X-ray sources (ULXs). We perform 10 simulations in radiative general relativistic magnetohydrodynamics, exploring six different ...
Fatemeh Kayanikhoo, Włodek Kluźniak, David Abarca, Miljenko Čemeljić   +3 more
doaj   +1 more source

Conversion Efficiency of 45.0% in InGaP/InGaAs/Ge Triple-Junction Solar Cells for Laser Power Beaming

Energies
Optical wireless power transmission systems are attracting attention as a new power transmission technology because they can supply power wirelessly over long distances.
Masahiro Koga, Shunsuke Shibui, Nozomi Matsuoka, Tomoya Sudo, Shiro Uchida   +4 more
doaj   +1 more source

Power beaming options [PDF]

Some large scale power beaming applications are proposed for the purpose of stimulating research. The first proposal is for a combination of large phased arrays on the ground near power stations and passive reflectors in geostationary orbit.
Rather, John D. G.
core   +1 more source

Corrosion and Process Analysis of a Preoxidized MgO Recyclate‐Based Cermet Anode in Laboratory‐Scale Na‐Cryolite Molten Salt Electrolysis of Aluminum at 1000°C

Advanced Engineering Materials, EarlyView.
EDX elemental map of the pre‐oxidized MgO–steel cermet anode cross section after electrolysis. The development of inert anodes for aluminum electrolysis remains challenging due to the high corrosivity of cryolite‐based melts at 950°C–1000°C. This study investigates the corrosion and process behavior of a carbon‐free MgO–steel cermet anode derived from ...
Alexander Adamczyk, Farhan Hossain, Felipe A. Garcia Paz, Serhii Yaroshevskyi, Felix Drechsler, Daniel Vogt, Christos G. Aneziris, Alexandros Charitos   +7 more
wiley   +1 more source

Solar Power Satellite Microwave Power Transmission System Description Executive Summary [PDF]

The history of the concept of microwave power beaming to Earth is reviewed with emphasis on transmission frequency selection. Constraints on the system power level results from (1) required rejection of waste heat resulting from inefficiencies in the ...
Woodcock, G. R.
core   +1 more source

Cluster Multi-spacecraft Determination of AKR Angular Beaming

, 2008
Simultaneous observations of AKR emission using the four-spacecraft Cluster array were used to make the first direct measurements of the angular beaming patterns of individual bursts.
Burinskaya, Calvert, Calvert, Dulk, Ergun, Gaelzer, Green, Green, Green, Gurnett, Gurnett, Gurnett, I. W. Christopher, J. S. Pickett, Kasaba, Laakso, Louarn, Mutel, Mutel, Mutel, Mutel, Pottelette, Pritchett, R. L. Mutel, Roux, Schreiber, Treumann, Xiao   +27 more
core   +2 more sources

Interaction of MgO Recyclate‐Based Cermet Anode With KF‐AlF3‐Al2O3 at 800°C During Laboratory Scale Aluminum Molten Salt Electrolysis

Advanced Engineering Materials, EarlyView.
A carbon‐free, as‐sintered MgO–steel cermet anode, fabricated via cold isostatic pressing using MgO–C refractory recyclate, was evaluated under laboratory‐scale K‐cryolite electrolysis at 800°C. Operation at this reduced temperature, combined with the electrolyte's limited electrical conductivity, led to an increase in cell voltage.
Farhan Hossain, Alexander Adamczyk, Felipe Alejandro Garcia Paz, Serhii Yaroshevskyi, Felix Drechsler, Daniel Vogt, Christos G. Aneziris, Alexandros Charitos   +7 more
wiley   +1 more source

67.5% Efficient InP-Based Laser Power Converters at 1470 nm at 77 K

Photonics
Recent developments in long wavelength and cryogenic laser power converters have unlocked record performances in both areas. Here, devices for an optical input at ~1470 nm are studied for cryogenic applications, combining these cryogenic and long ...
Simon Fafard, Denis Masson
doaj   +1 more source